I'm with Dan on that. 3d Printing has its uses, particularly making greeblies for terrain (fans, pipes, doors, windows) but I'd stick to scratch building the bulk of the terrain yourself. Printers seem to really shine where vehicles and machines are concerned. The only thing I can figure is that buildings tend to lean towards the organic. I think our eyes can see that there are imperfections that come from craftsmanship. Where a car, or computer, is made with rigorous standards and microscopic tolerances. Things that we no longer make by hand tend to look just right on a 3d printer. Things that involve craftsmanship tend to look wrong to me. Too clean, sterile, and perfect.